Improvement in gasaliers



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1 1 3 5 9 u v PATENTED JUN 271371 Jaw/zip Z6 Zia a umensmm JOHN H.SEAMAN, 0F BROOKLY EW YORK.

IMPROVEMENT IN GASALIERS.

Specification forming part of Letters Patent No. 116,359, dated June 27,1871.

To all whom it may concern:

Be it known that I, JOHN H. SEAMAN, of the city of Brooklyn, county ofKings and State of New York, have invented certain new and usefulImprovements in Grasaliers, Pendants, and other similar Fixtures forBurning Gas; and I do hereby declare that the following is a full andcorrect description thereof, reference being had to the annexed drawingand to the letters of reference thereon.

My invention relates to gasaliers or chandeliers for burning gas,suspended from the ceiling at a fixed elevation; and consists in certainnew and useful combinations of mechanism whereby one of the branches ismade movable and may be drawn down from the chandelier to serve as adrop-light, the gas-way being preserved by extensible metallicconnections.

The first part of my invention consists in combining a movable branchwith a sliding rod which passes up into the stem of the chandelier,occupying the axis thereof, but which forms no part of the gas-way, andis cut off from the gas-way of the stem by an internal pipe fitted toreceive the guide loosely; said internal pipe also being placed withinthe stem and cut off from the gasway of the stem at top and bottom by asuitable plug between it and the stem-pipe at each end; the gas-way ofthe stem being the annulus or space or spaces between the stem-pipe andthe inner pipe which receives the slide. My invention further consistsin combining, with the stem or gas center and the movable branch, afolding gas-pipe, whereby an extensible metallic connection is made withthe gas-way of the movable branch. My invention also consists in thearran gement of a spring pulley and cord in combination with the slidingrod which supports the movable branch, the cord passing down through theinternal pipe or guide of the stem when connected with the sliding rod.

Figure 1 of the drawing represents a front view, partly in section, of achandelier constructed with my improvements, showing the movable branchdrawn down to use as a drop'light. Fig. 2 is a side elevation of thesame, showing the movable branch in place as one of the branches of thechandelier. Fig. 3 is a view of the upper part of the stem and springbarrel, partly in section. Fig. 4, detached view of the movable branchand sliding rod.

a represents the stem of the chandelier, and b the internal pipe orguide for the sliding rod 0 of the movable branch 01. The internal guideb is preferably made of square pipe to correspond with the square formof the sliding rod 0, which is fitted to play up and down loosely withinit. The internal guide-pipes extends through the stem, being of the samelength, and both pipes are attached to each other at each end by anannular plug or by solder, which fills up the space at the ends betweenthe inner and outer pipes and leaves the inner pipe open at both ends,in manner as shown, with respect to the upper end, at Fig. 3. The upperend of the stem is screwed into a screw-hole, e, in the lower part ofthe casting or frame 6 which contains the spring barrel f, the cord ffrom which passes down through the screw-hole into the internal guide band connects with the sliding rod of the movable branch. The gas-way ofthe stem communicates, by side holes in the screw-joint, with a recess,0 in the screw-hole which connects with the small side pipe g, thelatter connecting, by a chamber or passage in the upper part of theframe 0 with the stiff screw-joint g by which the chandelier isconnected to the supply-pipe in the ceiling. The lower part of the stemis connected with the cast center-piece h in a similar manner to theupper part, it being screwed into the center and having lateral holescommunicating with a recess in the center-piece surrounding thegas-pipe, which recess communicates with the gas-way of the fixedbranches, as usual in gas-fixtures. The recess in the center-piece halso communicates with the gas-way of a boss, h, cast or brazed upon thecenter-piece h, and which connects with the turning joint 11 of thefolding pipe 1', the other end of said folding pipe being connected, byaturning joint, is, with the gas-way of the movable branch. The foldingpipe j has a folding joint, j, nearly at the middle of its length, andshould be provided with a stop, m, to prevent its joints being broughtinline and thereby impede the movement of the movable branch. The usualornamental part n of the center-piece in chandeliers is detachedtherefrom and made the medium of connecting the movable branch with thesliding rod, the knob 19 serving as a handle to move the branch up anddown. Arecess, w, with inclined sides, is also formed in thecenter-piece to receive the shoulder q of the movable branch, so that,

when in place, it appears to be a fixed part of the chandelier.

I do not claim as my invention anything described or shown in the patentto Charles Deans, July 19, 1870.

1 claim as my invention and improvement in gasaliers or chandeliers forburning gas-,-

1. In combination with a pendant or chandelier for burning gas, amovable branch in combination with a sliding rod attached thereto, and astem having an internal guide cutoff from the gas-way, substantially asherein described.

2. In combination with the movable branch,

sliding rod, and a stem with an internal guide cut-ofi' from thegas-Way, the folding gas-pipe, whereby an extensible metallic gas -Wayis obtained between the gas center and the movable branch, substantiallyas described.

3. The arrangement of the spring barrel and cord, in combination withthe stem and its internal guide and the siding rod, which supports themovable branch, substantially as described.

JOHN H. SEAMAN.

Witnesses:

ARTHUR D. WILLIAMS, WM. F. LETT.

